headset for asr-5?

hey folks. need to purchase a headset for my yeti. ive had experience of cane creek on my last bike and wasn't overly impressed by how long it didn't last! I was thinking about hope this time.. can anyone point me in the right direction for which one i would need?

Top cup 33.9, bottom cup 49.7
Hope do a low stack option on the bottom cup - order the normal version if you want .5 of a degree more head angle.
Works Components and Dartmoor (flash) also sell compatible headsets.

I have Hope on mine, my LBS sorted the cups for me as the Yeti is a bit odd in the sizing department. Hope isn't cheap but it is really well made and sealed compared to cheaper ones I've owned in the past.

I'll see if I have a record of the cups in my email but it was a bit unusual.

Hmm not got any note of it. Basically I used to have 1 /18th steerer and used one of the internal cups which spaces down to that size, then I got tapered forks and had to change to an externally type cup as the internal 1.5 cup doesn't fit they yeti. I can't remember the letter for the cups though.